Middle River Rouge At Plymouth Flow Report
As of July 21, 2026, Middle River Rouge At Plymouth is flowing at 40 cfs. Source: USGS gauge #04166750, refreshed throughout the day.
Historical Data
Middle River Rouge At Plymouth at a glance
How Middle River Rouge At Plymouth is running right now, where it sits on the map, and the key gauge stats.
Middle River Rouge At Plymouth is flowing at 40 cfs, with the water sitting ft at the gage.
This is USGS gauge #04166750 in Michigan. Over the past 10 days the average has been 40 cfs, peaking at 40 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Michigan flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #04166750).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Middle River Rouge At Plymouth
The watershed is home to a variety of urban and agricultural land uses, which can impact the river's health. The Middle River Rouge passes through several dams and lacks significant tributaries, though it is impacted by runoff from stormwater infrastructure. The gauge data shows seasonal trends, with highest flows in the spring and lowest flows in the summer. Interesting hydrological features of the river include a water trail for kayaking and a historical mill site.
Nearby streamflow levels
Cross-check Middle River Rouge At Plymouth's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Middle River Rouge At Plymouth | 40 cfs |
| Middle River Rouge Near Garden City | 21 cfs |
| Upper River Rouge At Farmington | 6 cfs |
| Lower River Rouge At Inkster | 132 cfs |
| River Rouge At Southfield | 15 cfs |
| River Rouge At Detroit | 29 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Middle River Rouge At Plymouth. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Farmington | 0 in |
| Detroit Metropolitan | 0 in |
| Commerce Charter Twp 1.8 Ese | 0 in |
| Dearborn No.2 | 0 in |
| Univ Of Mich | 0 in |
| Ann Arbor Se | 0 in |
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Middle River Rouge At Plymouth in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Middle River Rouge At Plymouth crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Middle River Rouge At Plymouth
Where does the streamflow data for Middle River Rouge At Plymouth come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 04166750. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Middle River Rouge At Plymouth rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Middle River Rouge At Plymouth report
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